/*
 * Copyright 2019 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 *
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.model;

import java.util.List;
import java.util.stream.Stream;

import static java.util.stream.Collectors.toList;

@FunctionalInterface
public interface RulesSupplier {
    List<Rule> getRulesList();

    static List<Rule> getRules(RulesSupplier... suppliers) {
        return Stream.of(suppliers).parallel().flatMap( s -> s.getRulesList().stream() ).collect( toList() );
    }
}
